CN108179868A - A kind of aerial construction platform device that special-shaped curtain wall is overhang based on steel construction - Google Patents
A kind of aerial construction platform device that special-shaped curtain wall is overhang based on steel construction Download PDFInfo
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- CN108179868A CN108179868A CN201810126471.5A CN201810126471A CN108179868A CN 108179868 A CN108179868 A CN 108179868A CN 201810126471 A CN201810126471 A CN 201810126471A CN 108179868 A CN108179868 A CN 108179868A
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- hanging basket
- truss girder
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 246
- 239000010959 steel Substances 0.000 title claims abstract description 246
- 238000010276 construction Methods 0.000 title claims abstract description 181
- 239000000463 material Substances 0.000 claims abstract description 8
- 238000009434 installation Methods 0.000 claims abstract description 7
- 238000011068 loading method Methods 0.000 claims description 27
- 238000007689 inspection Methods 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 14
- 239000003795 chemical substances by application Substances 0.000 claims description 13
- 238000003466 welding Methods 0.000 claims description 13
- 238000001514 detection method Methods 0.000 claims description 11
- 240000002853 Nelumbo nucifera Species 0.000 claims description 9
- 235000006508 Nelumbo nucifera Nutrition 0.000 claims description 9
- 235000006510 Nelumbo pentapetala Nutrition 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 claims description 6
- 230000005484 gravity Effects 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 238000003892 spreading Methods 0.000 claims description 6
- 239000000725 suspension Substances 0.000 claims description 6
- 238000004873 anchoring Methods 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 4
- 239000012141 concentrate Substances 0.000 claims description 3
- 239000004035 construction material Substances 0.000 claims description 3
- 238000005034 decoration Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 230000035515 penetration Effects 0.000 claims description 3
- 239000002893 slag Substances 0.000 claims description 3
- 238000010408 sweeping Methods 0.000 claims description 3
- 238000010998 test method Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- KFZAUHNPPZCSCR-UHFFFAOYSA-N iron zinc Chemical compound [Fe].[Zn] KFZAUHNPPZCSCR-UHFFFAOYSA-N 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
- E04G3/20—Scaffolds essentially supported by building constructions, e.g. adjustable in height supported by walls
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
- E04G3/28—Mobile scaffolds; Scaffolds with mobile platforms
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G5/00—Component parts or accessories for scaffolds
- E04G5/001—Safety or protective measures against falling down relating to scaffoldings
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G5/00—Component parts or accessories for scaffolds
- E04G5/04—Means for fastening, supporting, or bracing scaffolds on or against building constructions
- E04G5/046—Means for fastening, supporting, or bracing scaffolds on or against building constructions for fastening scaffoldings on walls
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
- E04G3/28—Mobile scaffolds; Scaffolds with mobile platforms
- E04G2003/286—Mobile scaffolds; Scaffolds with mobile platforms mobile vertically
Abstract
The present invention discloses a kind of aerial construction platform device that special-shaped curtain wall is overhang based on steel construction, by the use of the steel truss girder that the steel truss of special-shaped curtain wall is connect with constructure body structure as load-carrying member, erection construction platform, and combination installation external application scaffold and hanging basket carry out curtain wall construction on it.The present invention saves space without outrigger basis, facilitates the crossed construction of ground transport and engineering later stage each work post；Outrigger height is greatly reduced, saves a large amount of circulation materials, takes and tears open conveniently, securely and reliably；Can hanging basket, construction platform, outrigger operating surface on synchronize and construct, accelerate construction progress, shorten the construction period, energy conservation and environmental protection.
Description
Technical field
The present invention relates to special-shaped curtain wall construction platform technology fields, and in particular to one kind overhangs special-shaped curtain wall based on steel construction
Aerial construction platform device.
Background technology
For special-shaped curtain wall with modern design, shape is peculiar, gives people's visual impact sense.It is adjoint, to special-shaped curtain wall external application
Setting up for scaffold proposes higher requirement, traditional curtain wall construction scaffold and construction platform easily by extraneous construction environment,
The influence of itself architectural style and size, it is difficult to meet construction requirement.The scaffold of curtain wall external application at this stage is mostly fallen using single
The traditional technologies such as ground formula scaffold or hanging basket carry out construction and installation, and operating space is significantly insufficient, and construction efficiency is low, and input is big, work
Phase is long, can not meet the requirement of safety, agility and economy that special-shaped curtain wall engineering is constructed.
How under the premise of special-shaped curtain buildings construction safety, self structure, comprehensive utilization construction are dexterously utilized
Platform, hanging basket, aerial external application scaffold, adaptation to local conditions is quick economical, becomes the key for solving special-shaped curtain wall construction problem.
Invention content
Present invention aim to address above-mentioned deficiencies, provide a kind of aerial construction that special-shaped curtain wall is overhang based on steel construction
Stage apparatus.
To achieve the above object, technical solution of the invention is：It provides a kind of based on the special-shaped curtain wall of steel construction overhanging
Aerial construction platform device, the steel truss girder being connect using the steel truss of special-shaped curtain wall with constructure body structure（Curtain wall
Level-one keel）As load-carrying member, erection construction platform, and combination installation external application scaffold and hanging basket progress curtain wall are applied on it
Work.
Concrete scheme is：A kind of aerial construction platform device that special-shaped curtain wall is overhang based on steel construction, including steel truss master
Beam, construction platform, external application scaffold upright rod, horizon bar, wall-connecting piece, hanging basket fore-stock, hanging basket crossbeam, is hung square steel platform secondary beam
Basket clump weight, construction hanging basket；The steel truss girder is fixed on by welding or being bolted on constructure body structure, institute
The square steel platform secondary beam that horizontal full-length is welded on steel truss girder is stated, scaffold board formation is laid on the square steel platform secondary beam and is applied
Work platform, the external application scaffold upright rod are fixed on across construction platform on square steel platform secondary beam, the external application scaffold upright rod
In laterally double arrangement, the external application scaffold upright rod bottom is equipped with bar of sweeping the floor；Horizontal stroke is equipped between the external application scaffold upright rod
Scaffold board is equipped on horizon bar and horizontal rod, the external application scaffold upright rod is equipped with multigroup wall-connecting piece, the company
Wall part carries out rigid amplexis with the curtain wall steel truss host node outside building using steel pipe and fastener；The hanging basket fore-stock passes through
Construction platform is welded on square steel platform secondary beam, and the hanging basket fore poppet overhead is fixed with hanging basket crossbeam, the hanging basket crossbeam
Front end is stretched out on the outside of curtain wall, and the hanging basket crossbeam tail portion is equipped with hanging basket clump weight, and the hanging basket clump weight is hung using clump weight
Anchoring, the hanging basket crossbeam front end are equipped with construction hanging basket.
Further, it is equipped with vertical safety net on the outside of the external application scaffold upright rod；The steel truss girder bottom is equipped with
Horizontal safety net.
Further, laying square steel platform secondary beam on the steel truss girder, square steel platform secondary beam vertical steel truss girder,
Horizontal full-length, square steel platform secondary beam are fixed with per pass steel truss girder by 4 spot weldings, it is ensured that are stablized.
Further, upright bar locating piece is welded on the square steel platform secondary beam for determining external application scaffold upright rod
Position and limiting, upright bar locating piece use 18 bar dowels of φ, and length is not less than 10cm.
Further, the wall-connecting piece uses 48 × 3 steel pipes of φ, and layout points are into quincuncial pile shape, the covering of every wall-connecting piece
Area is not more than 40m2, wall-connecting piece with curtain wall steel truss is connected or stretched into wall and agent structure frame using rigid amplexis form
Trestle is rigidly connected or is directly connected with short steel pipes fastener pre-buried in agent structure.
Further, for the hanging basket fore-stock above square steel platform secondary beam, hanging basket fore-stock suspension centre is located at steel truss master
Beam front end, and be welded and fixed using U-shaped cuff with square steel platform secondary beam.
The present invention also provides a kind of production methods for the aerial construction platform device that special-shaped curtain wall is overhang based on steel construction, press
Following steps carry out：
Step 1: preparation of construction：The bearing capacity of steel truss girder is checked, work out arrangement and method for construction and carries out demonstration, to foot hand
Frame sets up worker's progress technology, safety is told somebody what one's real intentions are；To constructing, required tool, equipment, material work out plan, determine into field time；
Step 2: weld seam detection：The requirement of the connection category first-order weld of steel truss girder and built-in fitting, should weld full, not occur
Lack of penetration, stomata, slag inclusion, seminess, all first-order welds must carry out 100% ultrasonic flaw detection detection, it is ensured that weld seam
Quality meets code requirement；
Step 3: square steel platform secondary beam is laid with, is fixed：Elongated square steel platform secondary beam is laid on steel truss girder as external application
The support of scaffold upright rod, hanging basket fore-stock drop point and construction platform；Square steel platform secondary beam vertical steel truss girder, level are logical
Long, square steel platform secondary beam passes through 4 spot welding with per pass steel truss girder, it is ensured that square steel platform secondary beam is stablized；
Step 4: upright bar fixing piece welds：In square steel platform secondary beam subscript out with scaffold upright rod vertically and horizontally pitch mark,
Mark welds 18 bar dowels of φ, and length is not less than 10cm, is fixed for external application scaffold upright rod；
Step 5: construction platform is set up：After the completion of the welding of upright bar locating piece, scaffold board formation envelope is laid on square steel platform secondary beam
Enclosed construction platform；
Step 6: hanging basket is installed：Hanging basket fore-stock is supported on above square steel platform secondary beam, hanging basket fore-stock suspension centre is from steel truss
Girder front, not less than 20cm, is welded and fixed, hanging basket clump weight uses counterweight along distance using U-shaped cuff and square steel platform secondary beam
Construction hanging basket is finally mounted on hanging basket crossbeam front end by hanging anchoring；
Step 7: external application scaffold upright rod is set up：The selection of external application scaffold upright rod is new, long, straight-bar and wall thickness are not less than 2.8mm,
External application scaffold upright rod bottom is sleeved on upright bar locating piece, external application scaffold upright rod spreading uses sleeve couple, adjacent external application
Scaffold upright rod spreading position must mutually stagger, during setting up in time by wall-connecting piece by external application scaffold and agent structure or
Steel truss longeron host node connects；
Step 8: bridging is set：Full facade continuously sets longitudinal bridging on the outside of external application scaffold, and per pass bridging should not
Less than 4 across and >=6m, bridging should be reliably connected with the external application scaffold upright rod that connects with rotary buckle；
Step 9: wall-connecting piece is set：Using 48 × 3.5 steel pipe wall-connecting pieces of φ, layout points are arranged into quincuncial pile shape；
Step 10: security protection：Before construction platform and square steel platform secondary beam are set up, to ensure that steel truss girder upper mounting plate is constructed
Safety need to be laid with one layer of horizontal safety net, horizontal safety net and steel truss girder banding fixed below steel truss girder；It is anti-
Only big wisp height pendant, is laid with one layer of closely-knitted safety net above horizontal safety net；Scaffold board used in construction platform is laid with
Tightly to prevent object falling from high altitude；Vertical safety net is hanged up with erection, and two net stitching portions should wear net using galvanized wire
Binding is secured, does not allow to stay seam or ligation incomplete, vertical safety net should be tightened；Whole building facade should set no less than 2
The outer vertical safety net of row.
Further, wall-connecting piece construction is constructed using following form：By wall-connecting piece steel pipe and curtain wall truss host node
Carry out rigid amplexis；Or main structural frame column is utilized, pass through wall rigid amplexis therewith with stock wall-connecting piece；Or by wall-connecting piece
Fastener is carried out across exterior wall with the pre-buried short stanchion not yet removed during main structure construction to connect.
The present invention also provides a kind of construction load point for the aerial construction platform device that special-shaped curtain wall is overhang based on steel construction
Checking method is analysed, is carried out as follows：
Step 1: gravity load determines：Each construction material proportion is found according to construction handbook, selection and division load calculate single
Member obtains the gravity load of frame body, operating platform and curtain wall；
Step 2: construction live load determines：Although the outrigger is used for external decoration engineering, the materials such as secondary joist of curtain wall and balustrade exterior panelling
The big weight of doses, can be regarded as structure construction external application frame, and construction live load takes 3KN/m2, while consider curtain wall multilayer operation face
The characteristics of, when frame body safe checks, two layers of construction live load superposition can be used；Nacelle construction live load takes 1.2KN/ by specification
m2；
Step 3: the inspection of platform steel truss Main Girder Deflection is calculated：Scaffold and platform load can be reduced to uniformly distributed lotus by safety inspection when calculating
It carries, outrigger load action region is the longitudinal pitch range of steel truss girder on steel truss girder, and hanging basket load, which is considered as, concentrates lotus
It carries；Due to steel truss girder, its vertical rigidity is smaller, takes single steel truss girder as unit load bearing capacity component, overall steel
Safety stock of the actual carrying capacity of truss as supporting member；The force modes of steel truss girder are reduced to single span cantilever structure
Part, hanging basket load and other construction loads are reduced to load and evenly load respectively, and inspection calculates result and is partial to safety, and satisfaction is applied
Work requirement；
Step 4: platform steel truss girder weld strength：Weld seam is the key position that steel truss girder transmits construction loads, simultaneously
Moment M and shear V collective effect are born, the stress of fillet weld when should calculate independent role respectively, after being superimposed, checking computations are most endangered
Weld strength at dangerous point；If weld strength is unsatisfactory for that haunched slab reinforcing can be used during checking computations, until weld strength is met the requirements；
Step 5: construction platform square steel platform secondary beam：Hanging basket load fulcrum is located at steel truss girder front end, it is ensured that hanging basket load is straight
It connects and acts on steel truss girder, the effect that can not consider hanging basket load is calculated in the inspection of square steel platform secondary beam, and calculating pattern can simplify
Evenly load is born for single span simply supported beam, until its amount of deflection calculated value is bigger than normal, checking computation results are partial to construction safety.
The present invention also provides a kind of construction platforms for the aerial construction platform device that special-shaped curtain wall is overhang based on steel construction to hold
Carry force test method：
Concrete block, steel pipe, reinforcing bar, sandbag can be used in construction platform test, and construction is calculated by 0,0.5,0.7,1.00,1.20 times of inspection
Load Combination value carries out multistage loadings；Loading area：Longitudinal direction takes steel truss girder both sides to be no less than the distance of half, laterally takes outer
Position is set up with scaffold upright rod；By spirit level or dial gauge carries out deformation observation to the steel truss girder of carrying and appearance is examined
It looks into, every grade of loading duration is no less than 10-15min；When loading coefficient is 1.20 times, steel is observed after keeping load 30min
Whether truss girder has deformation, if deforming less than 3mm, loading terminates, if deformation is more than 3mm, continues after holding lotus 24 hours, becomes
Shape is less than 5mm, then construction platform bearing capacity is qualified；If finding to continue only 2-5min in loading procedure, beam body deflection deformation continues
Increase, and more than 5mm when should stop loading and search reason or adjustment loading scheme immediately, each loading procedure must have image with
Deformation measurement records.
A kind of aerial construction platform device that special-shaped curtain wall is overhang based on steel construction of design of the present invention, suitable for various different
The construction of type curtain wall is particularly suitable for the construction of large-scale steel truss keel structure abnormal shape curtain wall of the evagination less than 4 meters；Root of the present invention
The characteristics of according to special-shaped glass curtain wall and steel structure Long-span Cantilever, the steel truss girder being connect using itself steel structure truss with agent structure
Erection construction platform, set up on platform external application scaffold and installation hanging basket, using job platform as conversion layer, by it is all least
The construction loads of profit includes outrigger dead weight and live load, dead weight of basket and live load, platform dead weight and live load and curtain wall dead weight
Load includes keel, panel, attachment etc., is combined superposition, is transmitted in agent structure, is realized in curtain by steel truss girder
On the same vertical facade of wall, hanging basket, construction platform, outrigger are constructed simultaneously, and do not interfere with each other, securely and reliably, fast, economical.
The present invention ensures that product safety is reliable by load test, weld seam detection, platform deformation detection；The present invention need not
Outrigger basis, saves space, facilitates the crossed construction of ground transport and engineering later stage each work post；Outrigger height is greatly reduced, saves
A large amount of circulation materials are saved, takes and tears open conveniently, securely and reliably；Can hanging basket, job platform, outrigger operating surface on synchronize and applied
Work accelerates construction progress, and shortens the construction period, energy conservation and environmental protection.
Description of the drawings
Fig. 1 is the positive structure diagram of the present invention.
Fig. 2 is the structure diagram for removing hanging basket fore-stock, hanging basket crossbeam, hanging basket clump weight, construction hanging basket of the present invention.
Fig. 3 is the structure diagram for removing external application scaffold upright rod, horizon bar, wall-connecting piece of the present invention.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment shall fall within the protection scope of the present invention.
As shown in Figure 1, Figure 2 and Figure 3, a kind of aerial construction platform device that special-shaped curtain wall is overhang based on steel construction is provided,
By the use of the steel truss girder that the steel truss of special-shaped curtain wall is connect with constructure body structure as load-carrying member, set up apply on it
Work platform, and combination installation external application scaffold, hanging basket carry out curtain wall construction on it.
Concrete scheme is：A kind of aerial construction platform device that special-shaped curtain wall is overhang based on steel construction, including steel truss master
Beam 1, square steel platform secondary beam 2, construction platform 3, external application scaffold upright rod 4, horizon bar 5, wall-connecting piece 6, hanging basket fore-stock 7, hanging basket
Crossbeam 8, hanging basket clump weight 9, construction hanging basket 10；The steel truss girder 1 is fixed on building by welding or being bolted
In agent structure, it is welded with the square steel platform secondary beam 2 of horizontal full-length on the steel truss girder 1, on the square steel platform secondary beam 2
It is laid with scaffold board and forms construction platform 3, the external application scaffold upright rod 4 is fixed on square steel platform secondary beam 2 across construction platform 3
On, the external application scaffold upright rod 4 is equipped with bar 51 of sweeping the floor in laterally double arrangement, 4 bottom of external application scaffold upright rod；It is described
It is equipped between external application scaffold upright rod 4 on horizontal rod 5 and horizon bar 5 and is equipped with scaffold board 31, the external application scaffold is stood
Bar 4 is equipped with multigroup wall-connecting piece 6,11 host node of curtain wall steel truss longeron outside the wall-connecting piece 6 and building using steel pipe and
Fastener carries out rigid amplexis；The hanging basket fore-stock 7 is welded on across construction platform 3 on square steel platform secondary beam 2, before the hanging basket
7 top of stent is fixed with hanging basket crossbeam 8, and the front end of the hanging basket crossbeam 8 is stretched out on the outside of curtain wall, and 8 tail portion of hanging basket crossbeam is set
There is hanging basket clump weight 9, the hanging basket clump weight 9 uses clump weight hanging anchoring, and 8 front end of hanging basket crossbeam is equipped with construction hanging basket
10。
Further, 4 outside of external application scaffold upright rod is equipped with vertical safety net 41；1 bottom of steel truss girder
Equipped with horizontal safety net 42.
Further, square steel platform secondary beam 2,2 vertical steel truss master of square steel platform secondary beam are laid on the steel truss girder 1
Beam 1, horizontal full-length, square steel platform secondary beam 2 are fixed with per pass steel truss girder 1 by 4 spot weldings, it is ensured that are stablized.
Further, be welded on the square steel platform secondary beam 2 upright bar locating piece 21 for external application scaffold upright rod 4 into
Row positioning and limiting, upright bar locating piece 21 use 18 bar dowels of φ, and length is not less than 10cm.
Further, the wall-connecting piece 6 uses 48 × 3 steel pipes of φ, and into quincuncial pile shape, every wall-connecting piece 6 covers layout points
Capping product is no more than 40m2, wall-connecting piece 6 with curtain wall steel truss 12 is connected or stretched into wall and main body using rigid amplexis form
Structural frames trestle is rigidly connected or is directly connected with short steel pipes fastener pre-buried in agent structure.
Further, for the hanging basket fore-stock 7 above square steel platform secondary beam, 7 suspension centre of hanging basket fore-stock is located at steel truss
1 front end of girder, and be welded and fixed using U-shaped cuff with square steel platform secondary beam 2.
The present invention also provides a kind of production methods for the aerial construction platform device that special-shaped curtain wall is overhang based on steel construction, press
Following steps carry out：
Step 1: preparation of construction：The bearing capacity of steel truss girder 1 is checked, work out arrangement and method for construction and carries out demonstration, to foot hand
Frame sets up worker's progress technology, safety is told somebody what one's real intentions are；To constructing, required tool, equipment, material work out plan, determine into field time；
Step 2: weld seam detection：The requirement of the connection category first-order weld of steel truss girder 1 and built-in fitting, should weld full, not occur
Lack of penetration, stomata, slag inclusion, seminess, all first-order welds must carry out 100% ultrasonic flaw detection detection, it is ensured that weld seam
Quality meets code requirement；
Step 3: square steel platform secondary beam 2 is laid with, fixes：Elongated 2 conduct of square steel platform secondary beam is laid on steel truss girder 1
The support of external application scaffold upright rod 4,7 drop point of hanging basket fore-stock and construction platform 3；2 vertical steel truss girder of square steel platform secondary beam
1, horizontal full-length, square steel platform secondary beam 2 passes through 4 spot welding with per pass steel truss girder 1, it is ensured that square steel platform secondary beam 2 is stablized；
Step 4: upright bar fixing piece 21 welds：Upright bar vertically and horizontally pitch mark is marked on square steel platform secondary beam 2, in mark
18 bar dowels of φ are welded, length is not less than 10cm, is fixed for external application scaffold upright rod 4；
Step 5: construction platform 3 is set up：After the completion of upright bar locating piece 21 welds, scaffold board shape is laid on square steel platform secondary beam 2
Into closed construction platform 3；
Step 6: hanging basket is installed：Hanging basket fore-stock 7 is supported on 2 top of square steel platform secondary beam, 7 suspension centre of hanging basket fore-stock is from steel
Truss girder front, not less than 20cm, is welded and fixed, hanging basket clump weight 9 is adopted along distance using U-shaped cuff and square steel platform secondary beam 2
It is anchored with balance weight hanging, construction hanging basket 10 is finally mounted on 8 front end of hanging basket crossbeam；
Step 7: external application scaffold upright rod 4 is set up：External application scaffold upright rod 4 selects new, long, straight-bar and wall thickness is not less than
4 bottom of external application scaffold upright rod is sleeved on upright bar locating piece 21 by 2.8mm, and 4 spreading of external application scaffold upright rod is used to buckle
Part, adjacent 4 spreading position of external application scaffold upright rod must mutually stagger, in time by wall-connecting piece 6 by external application foot hand during setting up
Frame is connect with agent structure or steel truss longeron host node；
Step 8: bridging is set：Full facade continuously sets longitudinal bridging on the outside of external application scaffold, and per pass bridging should not
Less than 4 across and >=6m, bridging should be reliably connected with the external application scaffold upright rod 4 that connects with rotary buckle；
Step 9: wall-connecting piece 6 is set：Using 48 × 3.5 steel pipe wall-connecting pieces of φ, layout points are arranged into quincuncial pile shape；
Step 10: security protection：Before construction platform 3 and square steel platform secondary beam 2 are set up, to ensure that steel truss girder upper mounting plate is applied
Work safety, need to be laid with one layer of horizontal safety net 42 below steel truss girder, and horizontal safety net 42 and the binding of steel truss girder 1 are solid
It is fixed；To prevent big wisp height from falling, one layer of closely-knitted safety net is laid with above horizontal safety net 42；Foot used in construction platform
Palm is laid with tightly to prevent object falling from high altitude；Vertical safety net 41 is hanged up with erection, and two net stitching portions should use plating
Zinc-iron silk wears net binding securely, does not allow to stay seam or ligation incomplete, vertical safety net should be tightened；Whole building facade should be set
Vertical safety net 41 is arranged outside no less than 2.
Further, the construction of wall-connecting piece 6 is constructed using following form：By 6 steel pipe of wall-connecting piece and the main section of curtain wall truss
Point carries out rigid amplexis；Or main structural frame column is utilized, pass through wall rigid amplexis therewith with stock wall-connecting piece 6；It or will be even
Wall part 6 passes through exterior wall to carry out fastener with the pre-buried short stanchion not yet removed during main structure construction and connects.
The present invention also provides a kind of construction load point for the aerial construction platform device that special-shaped curtain wall is overhang based on steel construction
Checking method is analysed, is carried out as follows：
Step 1: gravity load determines：Each construction material proportion is found according to construction handbook, selection and division load calculate single
Member obtains the gravity load of frame body, operating platform and curtain wall；
Step 2: construction live load determines：Although the outrigger is used for external decoration engineering, the materials such as secondary joist of curtain wall and balustrade exterior panelling
The big weight of doses, can be regarded as structure construction external application frame, and construction live load takes 3KN/m2, while consider curtain wall multilayer operation face
The characteristics of, when frame body safe checks, two layers of construction live load superposition can be used；Nacelle construction live load takes 1.2KN/ by specification
m2；
Step 3: the inspection of 1 amount of deflection of platform steel truss girder is calculated：Scaffold and platform load can be reduced to uniformly distributed lotus by safety inspection when calculating
It carries, outrigger load action region is the longitudinal pitch range of steel truss girder on steel truss girder 1, and hanging basket load, which is considered as, concentrates lotus
It carries；Due to steel truss girder, its vertical rigidity is smaller, and single steel truss girder 1 is taken to be used as unit load bearing capacity component, whole
Safety stock of the actual carrying capacity of steel truss as supporting member；The force modes of steel truss girder 1 are reduced to single span to hang
Arm member, hanging basket load and other construction loads are reduced to load and evenly load respectively, and inspection calculates result and is partial to safety, full
Sufficient construction requirement；
Step 4: 1 girder weld strength of platform steel truss：Weld seam is the key position that steel truss girder 1 transmits construction loads, together
When bear moment M and shear V collective effect, the stress of fillet weld when should calculate independent role respectively, after being superimposed, checking computations most
Weld strength at dangerous point；If weld strength is unsatisfactory for that haunched slab reinforcing can be used during checking computations, wanted until weld strength meets
It asks；
Step 5: construction platform square steel platform secondary beam 2：Hanging basket load fulcrum is located at 1 front end of steel truss girder, it is ensured that hanging basket load
Steel truss girder 1 is acted directly on, the effect that can not consider hanging basket load is calculated in the inspection of square steel platform secondary beam 2, and the pattern of calculating can
It is reduced to single span simply supported beam and bears evenly load, until its amount of deflection calculated value is bigger than normal, checking computation results are partial to construction safety.
The present invention also provides a kind of construction platforms for the aerial construction platform device that special-shaped curtain wall is overhang based on steel construction to hold
Carry force test method：
Concrete block, steel pipe, reinforcing bar, sandbag can be used in construction platform test, and construction is calculated by 0,0.5,0.7,1.00,1.20 times of inspection
Load Combination value carries out multistage loadings；Loading area：Longitudinal direction takes 1 both sides of steel truss girder to be no less than the distance of half, laterally takes
External application scaffold upright rod 4 sets up position；Deformation observation and outer is carried out to the steel truss girder of carrying by spirit level or dial gauge
It sees and checks, every grade of loading duration is no less than 10-15min；When loading coefficient is 1.20 times, seen after keeping load 30min
Examine whether steel truss girder 1 has deformation, if deforming less than 3mm, loading terminates, if deformation is more than 3mm, continues to hold lotus 24 hours
Afterwards, 5mm is deformed less than, then construction platform bearing capacity is qualified；If it finds to continue only 2-5min, beam body deflection deformation in loading procedure
Continue to increase, and more than 5mm when should stop loading and search reason or adjustment loading scheme, each loading procedure there must be shadow immediately
Picture and deformation measurement record.
A kind of aerial construction platform device that special-shaped curtain wall is overhang based on steel construction of design of the present invention, suitable for various different
The construction of type curtain wall is particularly suitable for the construction of large-scale steel truss keel structure abnormal shape curtain wall of the evagination less than 4 meters；Root of the present invention
The characteristics of according to special-shaped glass curtain wall and steel structure Long-span Cantilever, the steel truss girder being connect using itself steel structure truss with agent structure
Erection construction platform, set up on platform external application scaffold and installation hanging basket, using job platform as conversion layer, by it is all least
The construction loads of profit includes outrigger dead weight and live load, dead weight of basket and live load, platform dead weight and live load and curtain wall dead weight
Load includes keel, panel, attachment etc., is combined superposition, is transmitted in agent structure, is realized in curtain by steel truss girder
On the same vertical facade of wall, hanging basket, construction platform, outrigger are constructed simultaneously, and do not interfere with each other, securely and reliably, fast, economical.
It is obvious to a person skilled in the art that the present invention is not limited to the details of above-mentioned exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Profit requirement rather than above description limit, it is intended that all by what is fallen within the meaning and scope of the equivalent requirements of the claims
Variation is included within the present invention.
Claims (10)
1. a kind of aerial construction platform device that special-shaped curtain wall is overhang based on steel construction, it is characterised in that：Including steel truss girder,
Square steel platform secondary beam, construction platform, external application scaffold upright rod, horizon bar, wall-connecting piece, hanging basket fore-stock, hanging basket crossbeam, hanging basket are matched
Pouring weight, construction hanging basket；The steel truss girder is fixed on by welding or being bolted on constructure body structure, the steel
The square steel platform secondary beam of horizontal full-length is welded on truss girder, it is flat that scaffold board formation construction is laid on the square steel platform secondary beam
Platform, the external application scaffold upright rod are fixed on across construction platform on square steel platform secondary beam, and the external application scaffold upright rod is in horizontal stroke
To double arrangement, the external application scaffold upright rod bottom is equipped with bar of sweeping the floor；Lateral water is equipped between the external application scaffold upright rod
Scaffold board is equipped on flat bar and horizontal rod, the external application scaffold upright rod is equipped with multigroup wall-connecting piece, the wall-connecting piece
Rigid amplexis is carried out using steel pipe and fastener with the curtain wall steel truss host node outside building；The hanging basket fore-stock passes through construction
For platform welding on square steel platform secondary beam, the hanging basket fore poppet overhead is fixed with hanging basket crossbeam, the front end of the hanging basket crossbeam
It stretches out on the outside of curtain wall, the hanging basket crossbeam tail portion is equipped with hanging basket clump weight, and the hanging basket clump weight is anchored using balance weight hanging, institute
Hanging basket crossbeam front end is stated equipped with construction hanging basket.
2. a kind of aerial construction platform device that special-shaped curtain wall is overhang based on steel construction as described in claim 1, feature are existed
In：Vertical safety net is equipped on the outside of the external application scaffold upright rod；The steel truss girder bottom is equipped with horizontal safety net.
3. a kind of aerial construction platform device that special-shaped curtain wall is overhang based on steel construction as described in claim 1, feature are existed
In：Square steel platform secondary beam, square steel platform secondary beam vertical steel truss girder, horizontal full-length, square steel are laid on the steel truss girder
Platform secondary beam is fixed with per pass steel truss girder by 4 spot weldings, it is ensured that is stablized.
4. a kind of aerial construction platform device that special-shaped curtain wall is overhang based on steel construction as described in claim 1, feature are existed
In：Upright bar locating piece is welded on the square steel platform secondary beam for external application scaffold upright rod to be positioned and limited, upright bar
Locating piece uses 18 bar dowels of φ, and length is not less than 10cm.
5. a kind of aerial construction platform device that special-shaped curtain wall is overhang based on steel construction as described in claim 1, feature are existed
In：The wall-connecting piece uses 48 × 3 steel pipes of φ, and layout points are not more than 40m into quincuncial pile shape, the area coverage of every wall-connecting piece2,
Wall-connecting piece is connected or stretches into wall with curtain wall steel truss using rigid amplexis form and main structural frame column carries out rigidity and connects
It connects or is directly connected with short steel pipes fastener pre-buried in agent structure.
6. a kind of aerial construction platform device that special-shaped curtain wall is overhang based on steel construction as described in claim 1, feature are existed
In：Vertical safety net is equipped on the outside of the external application scaffold upright rod；The steel truss girder bottom is equipped with horizontal safety net；It is described
Square steel platform secondary beam, square steel platform secondary beam vertical steel truss girder, horizontal full-length, square steel platform secondary beam are laid on steel truss girder
It is fixed with per pass steel truss girder by 4 spot weldings, it is ensured that square steel platform secondary beam does not shift；It is welded on the square steel platform secondary beam
Upright bar locating piece is connected to for external application scaffold upright rod to be positioned and limited, upright bar locating piece uses 18 bar dowels of φ, long
Degree is not less than 10cm；The wall-connecting piece uses 48 × 3 steel pipes of φ, and layout points are into quincuncial pile shape, the area coverage of every wall-connecting piece
No more than 40m2, wall-connecting piece with curtain wall steel truss is connected or stretched into wall and main structural frame column using rigid amplexis form
It is rigidly connected or short steel pipes pre-buried directly and in agent structure is directly connected to fastener；The hanging basket fore-stock is in side
Above steel platform secondary beam, hanging basket fore-stock suspension centre is located at steel truss girder front end, and is welded using U-shaped cuff and square steel platform secondary beam
Connect fixation.
7. a kind of making side of aerial construction platform device that special-shaped curtain wall is overhang based on steel construction as claimed in claim 6
Method, it is characterised in that：By the use of the steel truss girder that the steel truss of special-shaped curtain wall is connect with constructure body structure as load structure
Part, erection construction platform, and combination installation external application scaffold and hanging basket carry out curtain wall construction on it；And it carries out as follows
It makes：
Step 1: preparation of construction：The bearing capacity of steel truss girder is checked, work out arrangement and method for construction and carries out demonstration, to foot hand
Frame sets up worker's progress technology, safety is told somebody what one's real intentions are；To constructing, required tool, equipment, material work out plan, determine into field time；
Step 2: weld seam detection：The requirement of the connection category first-order weld of steel truss girder and built-in fitting, should weld full, not occur
Lack of penetration, stomata, slag inclusion, seminess, all first-order welds must carry out 100% ultrasonic flaw detection detection, it is ensured that weld seam
Quality meets code requirement；
Step 3: square steel platform secondary beam is laid with, is fixed：Elongated square steel platform secondary beam is laid on steel truss girder as external application
The support of scaffold upright rod, hanging basket fore-stock drop point and construction platform；Square steel platform secondary beam vertical steel truss girder, level are logical
Long, square steel platform secondary beam passes through 4 spot welding with per pass steel truss girder, it is ensured that square steel platform secondary beam is stablized；
Step 4: upright bar fixing piece welds：In square steel platform secondary beam subscript out with scaffold upright rod vertically and horizontally pitch mark,
Mark welds 18 bar dowels of φ, and length is not less than 10cm, is fixed for external application scaffold upright rod；
Step 5: construction platform is set up：After the completion of the welding of upright bar locating piece, scaffold board formation envelope is laid on square steel platform secondary beam
Enclosed construction platform；
Step 6: hanging basket is installed：Hanging basket fore-stock is supported on above square steel platform secondary beam, hanging basket fore-stock suspension centre is from steel truss
Girder front, not less than 20cm, is welded and fixed, hanging basket clump weight uses counterweight along distance using U-shaped cuff and square steel platform secondary beam
Construction hanging basket is finally mounted on hanging basket crossbeam front end by hanging anchoring；
Step 7: external application scaffold upright rod is set up：The selection of external application scaffold upright rod is new, long, straight-bar and wall thickness are not less than 2.8mm,
External application scaffold upright rod bottom is sleeved on upright bar locating piece, external application scaffold upright rod spreading uses sleeve couple, adjacent external application
Scaffold upright rod spreading position must mutually stagger, during setting up in time by wall-connecting piece by external application scaffold and agent structure or
Steel truss longeron host node connects；
Step 8: bridging is set：Full facade continuously sets longitudinal bridging on the outside of external application scaffold, and per pass bridging should not
Less than 4 across and >=6m, bridging should be reliably connected with the external application scaffold upright rod that connects with rotary buckle；
Step 9: wall-connecting piece is set：Using 48 × 3.5 steel pipe wall-connecting pieces of φ, layout points are arranged into quincuncial pile shape；
Step 10: security protection：Before construction platform and square steel platform secondary beam are set up, to ensure that steel truss girder upper mounting plate is constructed
Safety need to be laid with one layer of horizontal safety net, horizontal safety net and steel truss girder banding fixed below steel truss girder；It is anti-
Only big wisp height pendant, is laid with one layer of closely-knitted safety net above horizontal safety net；Scaffold board used in construction platform is laid with
Tightly to prevent object falling from high altitude；Vertical safety net is hanged up with erection, and two net stitching portions should wear net using galvanized wire
Binding is secured, does not allow to stay seam or ligation incomplete, vertical safety net should be tightened；Whole building facade should set no less than 2
The outer vertical safety net of row.
8. a kind of making side of aerial construction platform device that special-shaped curtain wall is overhang based on steel construction as claimed in claim 7
Method, it is characterised in that：Wall-connecting piece construction is constructed using following form：Wall-connecting piece steel pipe and curtain wall truss host node are carried out
Rigid amplexis；Or main structural frame column is utilized, pass through wall rigid amplexis therewith with stock wall-connecting piece；Or wall-connecting piece is passed through
Exterior wall carries out fastener with the pre-buried short stanchion not yet removed during main structure construction and connects.
9. a kind of construction load of aerial construction platform device that special-shaped curtain wall is overhang based on steel construction as claimed in claim 7
Analyze Method for Checking, it is characterised in that：It carries out as follows：
Step 1: gravity load determines：Each construction material proportion is found according to construction handbook, selection and division load calculate single
Member obtains the gravity load of frame body, operating platform and curtain wall；
Step 2: construction live load determines：Although the outrigger is used for external decoration engineering, the materials such as secondary joist of curtain wall and balustrade exterior panelling
The big weight of doses, can be regarded as structure construction external application frame, and construction live load takes 3KN/m2, while consider curtain wall multilayer operation face
The characteristics of, when frame body safe checks, two layers of construction live load superposition can be used；Nacelle construction live load takes 1.2KN/ by specification
m2；
Step 3: the inspection of platform steel truss Main Girder Deflection is calculated：Scaffold and platform load can be reduced to uniformly distributed lotus by safety inspection when calculating
It carries, outrigger load action region is the longitudinal pitch range of steel truss girder on steel truss girder, and hanging basket load, which is considered as, concentrates lotus
It carries；Due to steel truss girder, its vertical rigidity is smaller, takes single steel truss girder as unit load bearing capacity component, overall steel
Safety stock of the actual carrying capacity of truss as supporting member；The force modes of steel truss girder are reduced to single span cantilever structure
Part, hanging basket load and other construction loads are reduced to load and evenly load respectively, and inspection calculates result and is partial to safety, and satisfaction is applied
Work requirement；
Step 4: platform steel truss girder weld strength：Weld seam is the key position that steel truss girder transmits construction loads, simultaneously
Moment M and shear V collective effect are born, the stress of fillet weld when should calculate independent role respectively, after being superimposed, checking computations are most endangered
Weld strength at dangerous point；If weld strength is unsatisfactory for that haunched slab reinforcing can be used during checking computations, until weld strength is met the requirements；
Step 5: construction platform square steel platform secondary beam：Hanging basket load fulcrum is located at steel truss girder front end, it is ensured that hanging basket load is straight
It connects and acts on steel truss girder, the effect that can not consider hanging basket load is calculated in the inspection of square steel platform secondary beam, and calculating pattern can simplify
Evenly load is born for single span simply supported beam, until its amount of deflection calculated value is bigger than normal, checking computation results are partial to construction safety.
10. a kind of construction of aerial construction platform device that special-shaped curtain wall is overhang based on steel construction as claimed in claim 7 is put down
Platform bearing capacity test method：
Concrete block, steel pipe, reinforcing bar, sandbag can be used in construction platform test, and construction is calculated by 0,0.5,0.7,1.00,1.20 times of inspection
Load Combination value carries out multistage loadings；Loading area：Longitudinal direction takes steel truss girder both sides to be no less than the distance of half, laterally takes outer
Position is set up with scaffold upright rod；By spirit level or dial gauge carries out deformation observation to the steel truss girder of carrying and appearance is examined
It looks into, every grade of loading duration is no less than 10-15min；When loading coefficient is 1.20 times, steel is observed after keeping load 30min
Whether truss girder has deformation, if deforming less than 3mm, loading terminates, if deformation is more than 3mm, continues after holding lotus 24 hours, becomes
Shape is less than 5mm, then construction platform bearing capacity is qualified；If finding to continue only 2-5min in loading procedure, beam body deflection deformation continues
Increase, and more than 5mm when should stop loading and search reason or adjustment loading scheme immediately, each loading procedure must have image with
Deformation measurement records.
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| CN114351942A (en) * | 2021-12-20 | 2022-04-15 | 中国建筑第八工程局有限公司 | GRG decoration construction method of special-shaped hyperbolic steel structure column |
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